From: "Frank Haber" 

512-byte clusters are crippling for multimedia work, even for a single
user. They ain't too swift for a database of any size, either. They'd
probably be peachy for someone who writes greeting card mottos in WP51 DOS,
or for George's Canopus database.

The "small-cluster when converted" problem affected many small
clone shops and early adopters, and even made the magazines as a problem. 
Even PM7 couldn't fix it, and you had to run some risky Russky program, or
start over.

I never figured out why that gotcha had to be.

--- BBBS/NT v4.01 Flag-4